gtk 3.24.34 port

[mkhon]

Describe the pull request

• What does your PR fix?

  Fixes #...

• Which triplets are supported/not supported? Have you updated the CI baseline?

all

• Does your PR follow the maintainer guide?

Yes

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

Yes

If you are still working on the PR, open it as a Draft: https://github.blog/2019-02-14-introducing-draft-pull-requests/

[talregev]

This PR hold the latest master?

[talregev]

@dg0yt @JackBoosY Can you help?

[JackBoosY]

Run-time dependency atk-bridge-2.0 found: NO (tried pkgconfig and cmake)

../src/3.24.34-35fefc5b4d.clean/meson.build:585:2: ERROR: Dependency "atk-bridge-2.0" not found, tried pkgconfig and cmake

Determining dependency 'atk-bridge-2.0' with pkg-config executable '/bin/pkg-config'
env[PKG_CONFIG]: /bin/pkg-config
env[PKG_CONFIG_PATH]: /mnt/vcpkg-ci/installed/x64-linux/debug/lib/pkgconfig/:/mnt/vcpkg-ci/installed/x64-linux/debug/share/pkgconfig/
Called `/bin/pkg-config --modversion atk-bridge-2.0` -> 1

CMake binary for 1 is cached.
Preliminary CMake check failed. Aborting.
Run-time dependency atk-bridge-2.0 found: NO (tried pkgconfig and cmake)

../src/3.24.34-35fefc5b4d.clean/meson.build:585:2: ERROR: Dependency "atk-bridge-2.0" not found, tried pkgconfig and cmake

There only have installed/x64-linux/lib/pkgconfig/atk.pc, not atk-bridge-2.0.pc.

[talregev]

@JackBoosY We should add at-spi2-atk port to the dependencies. Can you do it?

[talregev]

@mkhon Can you add at-spi2-atk port to the dependencies?

[talregev]

@JackBoosY Please review again. Thank you!

[stevapple]

Is it ready for merge now?👀 Gtk3 is a long awaited port and many OSS projects could benefit from it🎉

Thank you for all the work!